Đường thẳng đi qua 2 điểm A(1;1) và B(2 2) có phương trình tham số là

Chọn A.

Phương trình tham số của đường thẳng AB là:

...Xem thêm

Đường thẳng đi qua hai điểm A1;1 và B2;2 có phương trình tham số là:

A. x=1+ty=2+2t.

B. x=1+ty=1+2t.

C. x=2+2ty=1+t.

D. x=ty=t.

Đáp án và lời giải

Đáp án:D

Lời giải:Lời giải
A1;1∈ABu→AB=AB→=1;1→AB:x=1+ty=1+t  t∈ℝ
→t=−1O0;0∈AB→AB:x=ty=t  t∈ℝ. Chọn D

Câu hỏi thuộc đề thi sau. Bạn có muốn thi thử?

Bài tập trắc nghiệm 15 phút Viết PTTS, PTCT của đường thẳng - Toán Học 10 - Đề số 4

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Một số câu hỏi khác cùng bài thi.

• Trong mặt phẳng với hệ tọa độ Oxy , cho ba điểm A3;2 ¸ P4;0 và Q0;−2 . Đường thẳng đi qua điểm A và song song với PQ có phương trình tham số là:
  

• Đường thẳng đi qua hai điểm A1;1 và B2;2 có phương trình tham số là:
  

• Phương trình nào dưới đây là PTTS của đường thẳng d: 2x−6y+23=0
  

• Trong mặt phẳng với hệ tọa độ Oxy , cho ba điểm A2;0 ¸ B0;3 và C−3;−1 . Đường thẳng đi qua điểm B và song song với AC có phương trình tham số là:
  

• Viết phương trình tham số của đường thẳng d đi qua điểm M−4;0 và vuông góc với đường phân giác góc phần tư thứ hai.
  

• Viết phương trình tham số của đường thẳng đi qua hai điểm A2;−1 và B2;5 .
  

• Đườngthẳng

  qua
  vàcóvéctơchỉphương
  cóphươngtrìnhthamsốlà

• Đườngthẳng

  cóphươngtrìnhtổngquát
  . Phươngtrìnhthamsốcủa
  là

• Phương trình nào là phương trình tham số của đường thẳng x−y+2=0 ?
  

• Viết phương trình tham số của đường thẳng đi qua

  và có vectơ chỉ phương

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